7*(4а^5+2ab)= (5xy-3x^2)*x^2= Упростить: 8b^5-2b*7b^4+3b^2-8b+0,25b*(-12)b+16...

Question

7*(4а^5+2ab)=

(5xy-3x^2)*x^2=

Упростить:
8b^5-2b*7b^4+3b^2-8b+0,25b*(-12)b+16

9a^2b(7a^2-5ab-4b^2)

Answer 1

7×(4а^5+2аб)=28а^5+14аб

(5ху-3х^2)×х^2=5х^3у-3х^4

упростить
=8б^5-14б^5+3б^2-8б-3б^2+16=
=16-6б^5-8б

9а^2б(7а^2-5аб-4б^2)=
=63а^4б-45а^3б^2-36а^2б^3